#include <iostream>
using namespace std;

class Box {
    public: 
        Box(){
            cout << "调用构造函数！"<< endl;
        }
        ~Box(){
            cout << "调用析构函数！" << endl;
        }
};

int main()
{
    Box* myBoxArray = new Box[4];
    delete [] myBoxArray;
    return 0;
}